| 摘要 |
PROBLEM TO BE SOLVED: To provide a double-row angular type ball bearing for wheel which is made to be highly rigid without enlarging the ball bearing. SOLUTION: When assembled to the suspension device in double-row angular type ball bearing, a contact angle of inner side ball row being on the central side in a width direction of vehicle is made to be smaller than a contact angle of outer side ball row being on the outer side in the width direction. A pitch circle diameter of the inner side ball row being on the central side in the width direction of the vehicle is also made to be smaller than a pitch circle diameter of the outer side ball row being on the outer side in the width direction. Furthermore, the diameter of outer side ball being on the outer side in the width direction of the vehicle is made to be smaller than a diameter of inner side ball being on the central side in the width direction of the vehicle. COPYRIGHT: (C)2011,JPO&INPIT
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